政治的追求不是追求完美，而是追求可容忍的。

我们关注的不是数字，而是产生数字的那些东西。

"Some infinities are bigger than other infinities."

Innovation and technology will be key to solving the energy challenges we face.

Inequality is not inevitable. It is a result of policy choices.

所有的真理一旦被发现，都很容易理解；关键在于发现它们。